The problem with many such empirical questions is that they can often only be answered by looking at historical data after the fact. So while we may say with great certainty that some statements are Not Even Wrong (most of marginalist economics falls in this category), it is usually not possible to say with any great confidence that this statement is right and that one wrong until after the fact. And policy needs to be made as things happen, not (just) after the fact.

- Jake

Friends come and go. Enemies accumulate.